Question

Find the median height.
Calculate the median from the following data:
Size frequency
More than 50. 0
More than 20. 123
More than 40 40
More than 30. 98
More than 10. 165
Mathematics-X​

Answer 1

Chapter 7: Statistics Exercise – 7.4Question: 1

Following are the lives in hours of 15 pieces of the components of aircraft engine. Find the median: 715, 724, 725, 710, 729, 745, 694, 699, 696, 712, 734, 728, 716, 705, 719.

Solution:

Lives in hours of is pieces are = 715, 724, 725, 710, 729, 745, 694, 699, 696, 712, 734, 728, 716, 705, 719

Arrange the above data in ascending order = 694, 696, 699, 705, 710, 712, 715, 716, 719, 721, 725, 728, 729, 734, 745

N = 15 (odd)

terms = 8th terms = 716

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